<template>
  <!-- 注册页面的整体盒子 -->
  <div class="register">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
        <el-form ref="form" :model="form" :rules='rulesObj' >

       <el-form-item prop='username'>
        <el-input v-model="form.username" placeholder='请输入用户名'></el-input>
       </el-form-item>

       <el-form-item prop='password'>
        <el-input v-model="form.password" placeholder='请输入密码' type="password"></el-input>
       </el-form-item>

       <el-form-item prop='repassword'>
        <el-input v-model="form.repassword" placeholder='请确认密码' type="password"></el-input>
       </el-form-item>

       <el-form-item>
        <el-button type='primary' class="btn-reg" @click="registerFn">注册</el-button>
        <el-link type='info' @click='$router.push("/login")'>去登录</el-link>
       </el-form-item>
</el-form>
    </div>
  </div>
</template>

<script>
import { registerAPI } from '@/api/index' // 用户注册的接口
export default {
  name: 'RegiSter', // 注册页面
  data () {
    const samePwdFn = (rule, value, callback) => {
      if (value !== this.form.password) {
        callback(new Error('两次输入的密码不一致'))
      } else {
        callback()
      }
    }
    return {
      form: { // 双向绑定输入框里面的值
        username: '', // 用户名
        password: '', // 密码
        repassword: '' // 确认密码
      },
      rulesObj: { // 表单校验规则
        username: [ // 输入用户名的校验规则
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { pattern: /^[a-zA-Z0-9]{1,10}$/, message: '用户名必须是1-10的字母数字', trigger: 'blur' }
        ],
        password: [ // 输入密码的校验规则
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' }
        ],
        repassword: [ // 确认输入密码的校验规则 samePwdFn自定义的校验
          { required: true, message: '请再次确认密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' },
          { validator: samePwdFn, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    registerFn () { // 点击注册的方法
    //  先验证是否都通过
      this.$refs.form.validate(async valid => {
        if (valid) {
          try {
            const { data: res } = await registerAPI(this.form)
            if (res.code === 0) { // 注册成功提示
              this.$message.success(res.message)
            } else {
              this.$message.message(res.message)
            }
          } catch (err) {
            console.log(err)
          }
        } else { // 没通过校验直接退出
          return false
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.register {
  background: url('../../assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 0 30px;
    box-sizing: border-box;

    .title-box {
      height: 60px;
      background: url('../../assets/images/login_title.png') center no-repeat;
    }

    .btn-reg {
      width: 100%;
    }
  }
}
</style>
